203412051 has 12 divisors (see below), whose sum is σ = 301758912. Its totient is φ = 131942736.

The previous prime is 203412047. The next prime is 203412073. The reversal of 203412051 is 150214302.

203412051 is a `hidden beast` number, since 203 + 412 + 0 + 51 = 666.

It is not a de Polignac number, because 203412051 - 2² = 203412047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203412551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305091 + ... + 305756.

It is an arithmetic number, because the mean of its divisors is an integer number (25146576).

Almost surely, 2^203412051 is an apocalyptic number.

203412051 is a deficient number, since it is larger than the sum of its proper divisors (98346861).

203412051 is a wasteful number, since it uses less digits than its factorization.

203412051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610890 (or 610887 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 203412051 is about 14262.2596736983. The cubic root of 203412051 is about 588.1104453787.

Adding to 203412051 its reverse (150214302), we get a palindrome (353626353).

The spelling of 203412051 in words is "two hundred three million, four hundred twelve thousand, fifty-one".